Totalizer system



@CL 26, 1943, H. c. ROBINSON 2,332,756

TOTALIZER SYSTEM Filedsept. 5, 1939 5 sheets-sheet 1 w ,o---un- @a nf? /47 @9 564 la s ifi INVENTOR.

Warm/@f C.' @05mm ffl/fw ATTORNEW 'OC- 26 1943- c. ROBINSON 2,332,756.`

TOTALIZER SYSTEM Filed s'ept. 5, Y1959 5 sheets-sheet 2 ,-7 STH/7T /fy r/c/ffr -5 gg 56.5 l w15 ,0R/NTM 56./ 5mm i@ ,f Kif f7 FM4. z/,f 6L

I VIH s L A ffm. y0-5M fl I INVENTOR.

V` n *i674 ATTORNEY, r

Oct. 26, 1943. H.- c. RoBlNsON 2,332,756

TOTALIZER SYSTEM Filed Sept. 5, 1939 5 Sheets-Sheet 3 ci. 26, 1943. H c, ROBINSON TOTALIZER SYSTEM Filed Sept. 5, 1939 5 Sheets-Sheet 4 NEW* H www 1N VENT OR.

A TTORN piq Haro/d L? M075 Oct. 26, 1943, H. c. ROBINSON 2,332,756

TOTALIZER SYSTEM Patented Oct. 26, 1943 UNITED STATES PATENT GFFICE 'ro'rAmzEa sYsTEM Harold C. Robinson, BaltimoreMd., assgnor to American Totalisator Company, Inc., Baltimore, Md., acorporationof Maryland Application September 1939,Serial No. 293,367

(Cl. 23S-92) Claims.

This inventionv relates to totalizer systems and has` for Vits, principal object thev provision.` ofi a;

new andv simplified system ofr this/kind that is cheaper to manufacture, install/ operate and maintain. ,y

It is a main object of the invention to provide a simplified totalizer systemthat can .be used under conditions where the c'o'st of operating the ticket'machinesemployed to print and issuethe tickets are prevented from operating until the` issuance af the ticket has. been registeredV in a. total adding machine and also in an individual runner adding machine.

Further objects of the inventlon, not specificallymentloned here, will be apparent from thedetailed description and claims which follow, reference being had to the accompanying drawings in which a preferred embodiment of the invent tion is shown by way of.` examplel and in which: Figure 1 is ajschematic circuit diagram of the total adding machine of the system;

Figure ZA is a schematic circuit diagram oi' the collector andticket machines;

Figure 3 is a schematiccircuit diagram of two individual runner adding machines Figure is a schematic circuit' diagram of the control means for the group of individual runner adding machines;

ticket machines,` is employed in. installations. 20,

Figure 5 is a schematic circuit diagram ofthe W combinationV ticket issuing machines and control apparatus associated therewith; and

Figure 6 is.a view showing how the figures are Ito be assembled,

A totalizermay'be defined asa device arranged lto count and add separately operations of each kind performed by several devices of a. group, and tov simultaneously count and add the total number ofy operations ofl all kinds performed byl the devices of the groups, and to display such sums on suitable indicators. Thus when used in connection with a group of ticket issuing machines which are capable of issuing a number of kinds of tickets, the totalizer through individual adding machinesrcountsiand displays the number of1ticketsofeach kind issuedby al1 of the ticket machines in the group and also throughV a total adding machine counts and displays the total number of tickets oi all kinds issued by all of the ticket machines-of the group.

In the totalizer systems of the prior art of which I am aware, so much equipment has been employed that the expense of manufacturing, in-

stalling, operating and` maintaining the equip-L me'nt has beenV sohigh as to be prohibitive in la large number. of instances. This fact has been recognized heretofore and as a result totalizer systems of various sizes have been` devised to meet the various conditions encountered. One of these systems, known as lthe senior totalizer system and capable of'handling severalhundred where the volume off business done justifies that many ticket machines. A somewhat smaller sys- -f tem, known asthe intermediate-totalizer, isemployed in smaller installationsfand a still smaller system, known as the junior-totalizer andcapable of handling only a small portionof the number of ticket machines that the senior totalizer is capable of: handling, is4 extensivelyused.

The present inventionhasev for itsgprincipa'l ob..

ject theprovision of astillfsmaller totalizersystem so that the service, rendered by. thel system willybe availablein many cases wherecostsshave;

heretofore f been prohibitive,

Whenused inconnection with the-issuance of pari-mutuel tickets at a race track, totalizershave heretoforebeen too expensive for smallV tracks such as, areto be found` at county fairs and the like. Thepresentsystem. is designed to` render the `service availableto such tracks.

In the prior vart systems, tickets issued'V by the ticket machines have been registered in atot'al addingy machine which registersall` of the tickets issued ina-particular pool, regardless ofthe runner upon which the ticket is issued, and" individual runner adding-machines have been ernployed to register the ticketsissued on-the indi:-

lvidual runners. The surns` accumulatedv bythe individual-and; total adding machines. have been displayed atvariouspointsthrough displaypanels, these displays vbeing changed atyfrequent intervals-so that the total amount in a pool and the` amount upon each individual runner is at all times visible. In addition, the display panels have.. been provided with odds indicators giving the probable odds on ay particular runner in the win pool.

In a system embodying the teachings of the present invention, the total number of tickets issued in a particular pool is registered in a total adding machine, as before, and the total number of tickets issued upon each individual runner is registered in an individual runner adding machine in that pool. No display boards are ernployed to indicate these totals but rather the totals are indicated only upon the registers.' If desired, odds boards may be employed andthe probable odds indicated as before.

In the preferred embodimentof the invention, the total number of tickets issued is counted and indicatedby mechanical counters of the sot-called Veeder;type, these,Y counters` being operated electromagnetically.4 Preferably. the countersl are arranged to indicate the total numberof $2.00 tickets that; have been issued. Since at the smaller tracks $1.00 tickets are' frequently issued, provision is made to store such issuance in the adding machine and to operate the mechanical counter onceeach time the odd dollar ticket sales total $2.00. Each time a $5.00 ticket is'issued, the mechanical counter is operated twice and the remaining odd dollar is stored in the control equipment to be later combined with another odd dollar sum to operate the counter.

Referring now to the drawings, in Figure 1 the totalv addingr machine is shown to comprise a counter, control relaysfl to 9 inclusive and odddollar storing relays OI and O2, with a bet accepting relay I arranged to control the operation of the machine` Of these instrumentalities, re-A lays I to 9 inclusive, the contacts controlled thereby andthe circuits extending through said contacts are the control unit of the total adding machine. Connected to the total adding machine is a collector, for convenience shown as a mechanical stepping switch having wipers whichv pass Aover a bank of contacts, usually twenty-five contacts being accessible to each wiper.. Connected to the bank contacts over which one of the wipers passes are a plurality of ticket machines grouped according to the value of tickets to be issued thereby.' Thus, for example, ticket machine TMI is assumed to bey one of a group of ticket machines `adapted to print-and issue a group of $1.00 ticketsfTMZ is a ticket machine for issuing $2.00fticketsQTMS-is'a ticket machine for issuing $5.00 tickets 'andl r'IIMIU is a ticket machine for issuing1$10.`00' tickets. The particular type of ticket machines is not of. the essence of the present'finvention as therefare a number of devicesof this kind availableupon the openmarket which'may be used.r Thus, for example, the ticket'fmachines shown'and described in the Blackpatents, Nos.v A1,886,626fand` 1,886,627, have been found "to'" be y satisfactory and reference is here madefto these patentslforv-the details of vconstruction a-nd operation ofthe'machine.

lInFi'gure 2, ticket machin'e'TMIhas been dia.

grammatically shown, those-parts of the machine directly involved in the present invention being shown in suilcient detail to enable a clear understanding of the invention. It-jissuflicient to note.

here that each ticket machine has afkey for each t' runner, and that usually thel machines are provided with twelve keys. Uponbeing depressed,

the key is mechanically locked in operated'` position andis releasedonly-,when the function of printing and issuing the'ticket has been-completed. Each machine is provided with a control relay such as relay 22 of TMI which is directly involved in the operation of the present invention. Ticket machine ITMI is shown with sum- .n

Figure 3, above the dotted line,rshows the re" v lays and counter comprising an individual adding machine for the rst runner 'and'b'elow the` line a similar set of equipment for the last runner. l Itwill be understood that in an installation therevwill be anumberof individual adding machines corresponding to the number of keys on the ticket machines. If desired, each of these individual adding machines may be a complete unit such as the total adding machine shown in Figure 1, however, for the sake of simplicity, I prefer to separate from the individual adding machines as much as possible of the control' equipment and to make such equipment common to all of the machines of the group which common equipment is shown in Figure' 4 of the drawings. This can be safely done since the individual adding machines are operated one at a time, during which operation a particular machine has exclusive use of the common apparatus.

Associated with each individual adding machine is a scratch key, such as the keys 33| and 332, these keys being operated to open the` circuit to the bet accepting relays, such as 3| and 36, when the particular individual runner corresponding to the adding machine is scratched. For convenience, keys 33| and 332 are designated as scratch keys. A reset key 302 is also provided and is adapted to be operated prior to preparing the system for use so as to insure that all relays in the individual adding machines will be in normal position.

Associated with the devices shown in the drawings are the usual supervisory alarm devices. However, since these devices form no essential part of the present invention, they have been omitted to avoid unnecessary vcomplication of the drawings.

As shown in the drawings, the system employs the fundamental operating principles of the copending Levy application, Serial No. 100,464, filed September 12, 1936, now Patent 2,182,875, issued December 12, 1939, in that the collector is interposed between the total adding machine and ticket machines with its wiper connected to the bet accepting relay of the total adding machine. The individual runner keys of the ticket machines are multipled together and a circuit extended therethrough to the lbet accepting relay of the individual adding machines. A fundamental operating circuit is extended through the bet accepting relay of the total adding machine and control relay of the ticketmachine and the bet accepting relay of the` individual adding machines in series, `the adding machine relaysv operating at once over this circuit and the ticket machine relay remaining inactive until a checking circuit has `been established. While this.

Vpreferred form is shown,;the teachings of the instant invention may be used in connection with 'f other fundamental operatingfcircuits, if desired.'

on that particular runner. To ascertain the $1.00

value of the tickets sold, the reading is multiplied by two. If the $1.00 lamp is lighted to indicate an cdd dollar sale stored in the equipment,

$1.00 is added to this sum. The total adding machine register is read in the same manner.'

Preferably, the counters are all restored to zero prior to the reconditioning of the system for the registering of further ticket sales.

Referring now to the drawings in more detail, a detailed description of the operation of the system will be given.

The totalizer is made ready for betting by v closing key 20| to connect thetotal adding maai f ground through spring 30| and its make contact,

' through the runner slave relay 32 to battery, op-

chine bet accepting relay to the collector, by

closing key 205v to place starting ground upon the ticket machines, and by closing scratch keys such as 33 hand 332 for each runner in the race to place the runner. addinglmachine individual that runner. Other main control keys are opererating relay 32. springs which insofar as the operation of the circuits is concerned could be carried by 'relay 3|, however, this Arelay would be overloaded and consequently would operate slower if it carried this spring load and, therefore, I' prefer to use the slave relay 32.

Collector wipers 203 and 204 are aligned with wiper 202 and are now engaging one of a series @of multiple contacts corresponding tothe $1.00 fticket machines, and upon the operation of relay `I0 a circuit is closed from ground, through spring ,|53and its make contact, conductor 254, wiper 203 and its bank contact, conductor 203,*through the'winding Aof the $1.00 selective control relay 4| to the runner in condition to register betsfon ated to condition the supervisory= equipment, but

since this supervisory equipment forms no part of the present invention, it has been omitted from the drawings to avoid unnecessary complications thereof. 4

Assume that the rst bet that the system is called upon to handle is placed on ticketmachine TMI and thatit is placed upon runner in therunner adding machine control unit, Figure 4, to battery. Relay 4| energizes over this circuit and at springs 423 closes ahet registering circuit as follows: Y

From ground through spring 423 and its make contact, conductor 351, spring 305f'a`n'd1its` make y contactf conductor 35|, through 'makefbefore breakrspring 303 and its break contactthrough theupper winding of differential relay' 33 to "bat- 'tery, with a vbranch circuit extendingfthough; the

number `I. Since the ticket machine TMI` is the rst ticket machine in the $1.00 group, the

amount bet is assumed to be $1.00 and the operation is as follows: y

- FIRST $1.00 Ba'r f The ticket seller depresses key 2 I0 in the ticket machine TMI to prepare the machine' for thef issuance of a ticket upon runner number Re-4 sponsive to this operation, a starting circuit is closed as follows:

From ground through closed springs205-of upper winding of differential relay'34 'to`l battery,

with a second branch circuit extendingv through spring 306 and its break contact'through' the lower winding of relay 34 to battery. Differential relay 33 operates over this circuit since :it is 4`ener.- gized only through its upper Winding but 'relay 34 remains in .normal position sinee'fb'othits up:

' perlandflower windings are energized.

Relay 33 locks itself in operated position from ground through reset key 302, through-the`- make contactbsprings 303, through the upper'wind= ing of relay' 33` to battery.v The operationfof '.40 the start key, start conductor 262, key spring 2|| and its rmake contact, through the ticket j machine start multiple'200, through spring 200 and its lbreak `contact, start conductor 1252,` through spring |52 and its break Contact, conductor 253, through the .break contact of and spring 223 on the collector motor magnetY :2|,

through the winding of that magnet to battery. Motor magnet 2| operates over this circuit preparatory to advancing 'the wipers 202, 203 4and 'spring' 301 and its makecontact, conduct rmakebefore break spring 303 transfers the 'circuit through Athe'zupper winding of relay 34" `fr'om conductor 35|fto grounded reset conductor' 35.0;

f without vparticular effect-at the moment-.-`Acir'- Ycuit may now be traced' from ground=-throu`gh `spring 309 and its breakcontact, throuighisprin 308 and its make contact,- conductor 352th'ough through the rwinding of relay 4a vof the urer 204 one step, breaks its own circuit by opening springs 223 andadvances the wipers upon restoring tonormal. Magnet 2| roperates in a buzzerlike fashionto advance the wipers step by step until they are in the position in which they are shown in Figure 2. s

A circuit, may now be traced from ground throughrelay I0, key springs 20|, wiper 202 and its bank contact to which conductor 250 is ccnnected, conductor 250, through break contact of and spring 206 of the ticket machine control relay 22, conductor 256, through ticket machine key spring 2|0 and its make contact, conductor 251, through key 33|, through the winding oi."

runner betA accepting relay 3| to battery. Relays and operate over this circuit.l Relay 22 is alow sensitivity marginal relay and will not operate in series with relays .I0 and 3|.` The operation of relay l0 opens springs |52 thereby to break the start circuit to stop the collector and thereby maintain the foregoing circuit intact.

Storing the bet in the runner adding machine The operation of relay3| closes a circuit from I0 and 3|- are high'speed, high sensitivity relays plete.

adding machine common'control unit, toi'battery. Relay 44 operates over this'clrcuit.

through spring 420 and .its make "contact,'-con- Y,ductor 465, springr426 :andiits make contactgffto Y the one dollar bet-'acknowledging condiiti |33 leading to the total adding machine. Iwevr, at the moment this-circuit is deemed to beincomvstoring $1.00 tetvinrdmz adding machine v1n kthermal adding? machine the operation of relay |0 also closes a circuit from ground through spring |54 and its makecontacuconductor 255.

wiper 204 and its bankcontact to which conductor |8| yis connectedthroug h the winding of the total adding machine $1.00 selective control 'relay 6 to battery. Relay'G operates'over'thi's circuit. A circuit may now be tracedv from ground through spring |39 of relay 6 and vits make contact,`conductor |63, through break contact of and make before break spring |02,

through the upper winding of differential relay 0| to battery, with a branch extending through the upper winding of differential relay O2 to battery, and a second branch extending through conductor |64, spring |01 and its break contact.

Relay 32 carries a group of` through the lower winding of relay O2 to battery. Relay operates over this circuit since it is energized only through its upper Winding but relay O2. does not operate since it is energizedthrough both its windings. Relay OI upon operating locks itself to ground through reset key |55,

the upper winding of relay O2 from ground on conductor |63 to ground on reset key |55, without particular effect at the moment.

Acknowledgng the $1.00 bei The operation of relay OI having been thus completed, and relay 3.3 having been previously `operated as explained above, the grounded acknowledging circuit previously traced to conductor |85 is extended through conductor |80, Figure l, through spring |56 and its make-contact, spring |51 and itsvbreak contact, acknowledging conductor |14, through resistance |58, to the previously traced circuit through relays I0, 22 and 3|. Resistance |58 is thereby connected in parallel with relay I0, and the current flowing through the relay 22 is increased suiilciently to cause ,that relay to operate.

The operation of relay 22 closes spring 201, thereby to extend a circuit from battery through the lower winding of relay 22 to the grounded ticket machine start conductor 260 to lock relay 22 in its energized position. `Relay 22 at spring 208 also closes a circuit for the motor of the ticketmachine to operate that machine to print and issue a ticket and at the end of that operation to unlock key 2|0 to normal.

The operation of relay 22 also opens springs 209 to open a point in the start circuit of the collector motor magnet 2| which operationis without effect at the momentsince that circuit is 4held open by spring |52 of relay I0.

The operation of relay 22 also opens springs 203 thereby to break the circuit through relay |0,

the upper Winding of relay 22 and relay 3|, and' relays |0 and 3| restore to normal.

Clearing the runner adding machine In the runner adding machine, restoration of relay 3| restores relay. 32, thereby opening springs 305 to remove ground from the circuit extending fromqconductor 35|` through spring y306 and its break contact, through the lower winding of relay 34, whereupon'relay 34 operates over the previously traced circuit through its upper winding. Operation of relay 34 closes a circuit from ground through spring 304 and its make contact, conductor 356, through the $1.00 lamp to battery, ligh-ting that lamp to indicate that there is a $1.00 bet stored-on runner number At springs 309, relayr 34 opens the previously traced circuit through relay 44, this circuit having also been opened at springs 301, to permit relay 44 to restore.- Restoration of relay 44 removes ground from $1.00 bet acknowledging conductor |85.

Thus it will be seen that Athe iirst $1.00 sale placed in the runner adding machines operates relay 33 and then relay 34 to store the sale, which is indicated by lighting the $1.00 lamp. Relays 33 and 34 may be termed either storing relays or accumulatingV relays, as desired. These relays store odd dollar sales, accumulatingv the same until the value that is registered on the counter is reached. If at the close of a sales period the sum in the adding machine is of an odd dollar value, the only indication of the odd dollar is in the operation of relay 34 and the lighting of the vpermit it to restore to $1.00 lamp.

Clearing the total adding machine Restoration of total adding machine bet accepting relay l0, at springs |54 opens the previously traced circuit for relay 6, permitting that relay to restore. Restoration yol? relay 5 opens springs |39 to remove ground from the previously Vtraced circuit extending through conductor |54 and spring |01 and its break contact tv the lower winding of relay O2, whereupon relay O2 operates over the previously traced circuit from reset key |55 through its upper winding. A circuit may now be traced from ground through spring |03 and its make contact through the $1.00 lamp of the total adding machinery to battery, that lamp burning to indicate that a $1.00 bet has been storing in the total adding machine.

Restoration oi' relay |0 at springs |53 opens the previously traced circuit for relay 4| of the runner adding machine control, permitting that relay to restore and thereby return the control to its normal p'osition. Restoration of relay I0 recloses springs |52 to prepare the start circuit for the next operation of the equipment. This completes the registering of a $1.00A bet upon runner number in the runner adding machine and in the total adding machine and the equipment is all in normal position in readiness for placing the next bet. Relays OI and O2n like relays 33 and 34 may be called either storing relays or accumulating relays, as desired. Their function is lidentical with the function of relays v 33 and 34 in that relays OI and O2 are operated to store an odd dollar sale in the total adding machine and to control the $1.00 lampwhich burns to indicate that there is an odd dollar sum stored in the total adding machine.

SECOND $1.00 BET oN RUNNER NUMBER 1 Assume that the second bet placed in the system is also placed upon runner number and that it is a $1.00 lbet. Under these conditions, the collector wipers will be located in the position in which they are shown and as soon as the runner number key 2|0 in the ticket machine is closed, yrelays 0 and 3| will be energized. Relay 32 will energize with relay 3| and relay 4| in the runner adding machine control and relay 6 in thel total adding machine will be energized over the previously traced circuits, The previously traced circuit extending ground over conductor 351 through spring 305 and its make contact will again be closed and will extend over conductor 35|, through spring 306 and its make contact, through the lower winding of differential.y

relay 33 to battery. Sincerelay 33 has been held in its operated position over a circuit extending through its upper winding, and both windings are now energized, and the relay will restore to normal. Restoration of relay 33 transfers the circuit through the upper winding of relay 34 from ground at reset key 302 to conductor 35| without. eiiect' at the moment since there is a ground on.

conductor 35|, relay 34 remains operated and the runner No. indicator lamp remains lighted.

A circuit may now be traced from ground through spring 422 of the selective control relay 4| and its make contact, conductor 360, through spring 3|6 and its make contact, conductor 355, spring 3f|4 and its break contact, spring 3|5 and its make contact, through the winding of motor magnet 35 to battery. Motor magnet 35 operates `assente l V'spring 3|| ,and its make contact, lconductor 359.

spring'4`2-5 'of control relay 4| andfits make contact, to the v$1.\fbet acknowledging conductor Registeringiheseccnd:$1.00 betvin the total vadding `'machine In the tota1 adding machine, the'enrgizaucn of relay 6ias above'A explained again closes the circuit extended through conductors |63 and |64,

throughspring |01, and its make Contact, through the -lower winding of relay Ol to 'battery,.and

. since relay v0| is maintained operatedkthrough Aa circuit'through its upper Winding, both Windings willy beener'gized and the relay will restore A- to normal. Restoration of relay-0| transfersv the circuitthrough'the-upper winding of relay O2 from ground through reset key |55 to conductor lf2) but relay O2 'remains inoperated position since, at the moment, there is a ground on conductor |63. A circuit may now be traced from ground, through spring/I I6 and its make contact,

through springl Iland its 'break contact, through spring ||8 and its make contact,conductor |62, through the winding of motor magnet to battery. Magnet operates over this circuit and operates the counter one step. y

The registration of the second $1.00 bet in the runnertadding machine and in the totalr adding machine having now4 been completed, the ground upon the acknowledging conductor |85 is ex` tended through spring |45 and 'its` make contact, conductor |60,.through spring of m'o'tor magnet and its make contact, conductor |6l, through spring |29 of relay 6 and its make contact, acknowledging conductor |14, through re-l sistance |58 to the previously` traced circuit,` through relays-I0, 22 and 3|, whereupon relayl 22 operates as previously described toinitiate the operation of the ticket machinevand to break the above circuit at springs 206 to permit relays I0 and 3| to restore.

Clearing the runner adding machine Restoration of relay 3| restores relay 32, whereupon springs 305 are opened and ground is" re' moved from the previously traced locking circuit through the upper winding of relay 34 to permit that relay to restore.

Restoration of relays 32 and 34 breaks the previously'` traced circuit through motor magnet 35 topermit that magnet to restore to normal, thereby to complete the operation of the runner 1 adding machine under the conditions assumed.

Clearing they totall adding machine Restoration of Vtotal adding machine relay |0 of the total' adding machine under the conditions assumed. Restoration 4of relay I0 also clpses springs i |52 to prepare thescollectorstart circuit for the next operation.

PLACINGv A $2.00 Y33m Assume now tlata bet is placed through' ticket machine 'I'M2, "Figure-2, and vthat this ticket machine is one of thegroup of ticket machines that Vissues v$2.00 tickets. Assume'further that the bet-'is also placed upon runnerfn'umber I. Under' these conditions, the ticket seller will depress the ticket machine key 2|9,` thereby to close the starting circuit from grounded-start conductor 262 and throughV spring 220 and its make' contact, ticket machine start multiple 265, spring 2|8 anditsbreak contact, start conductor-252 Lover the previously traced/circuit to motor ma'gnet 2| of the collector,.'causing .the collector to operatestep by step until wiper 202 is'moved into'engagement with the bankcontact' to which conductor 525| f is connected, at which' .time the betting' circuit is closed from ground through relay |0 and wiper 202, 'conductor 25|, throughV spring -2I6 and itsfbreak contact, through the upper lWindingofrrelay 23, 'conductor 26|, key spring 2|9'iand its make contact, conductor 263, multiple conductorV 264 to conductor 251, through scratch Vkey 33 through the winding of'relaya3'l tobattery. vRelays |0 and'3l operate over this circuit as before, and relay 32 operates under` the control of relay 3|. i i c Registering Vthe` bei in the runner adding machinev At the time that Wiper 202 engages the contact to which conductor 25| is connected,wiper 203 will be in engagementwith a contact of the group to which conductor 269'is connected. The operation of relay ||l breaks vthe startingY circuitat spring |52 to maintainthe wipers fixed in this Y' position and a circuit maynow be'traced from ground through spring`|53and its 'makecontacm conductor-254,'wiper 203-andits-bank contact,

conductor 269 throughl the Winding of 'runner adding machine `selective control'l relay 42 to i Y battery, relay 42 operating overv this circuit. A

circuit may now bertrac'ed from ground through 'spring4|2 on the relay y42 and its makecontact,

at springs |53 opens the circuit of runner addunit to normal, thereby to` complete the operation .7gA

conductor 36|, spring 3|3 and its make contact,

conductor 354through the fwinding of motor,A magnet 35 to battery, magnet 35'operating over this circuit to operate'the counter one step,

thereby to register the placing of the $2.00 bet.

rIIhe operation o f motor magnet 35 closesa'point in the acknowledgingrcircuitby extending a circuit 'from ground, through spring 3|2.` and ts` make contact, conductor 353,v springA 3|| and its make contact, conductor 353, spring 425 andY its break contact, conductor 464, spring'42l and its make contact, to $2.00 acknowledgingfconductor Registering the beiA inthe total adding machine `The operationvof relay |0 also closes a circuit from ground through spring |54 and its make contact, conductor 255, *wipery 204and`1 its bank contact to which` conductorlsZ' is connected, conductor; |82 through the winding of total adding machine selective'controlrelay'l to battery,

operating this relay.

The `op'e'ratioxrlof relayi'hat spring Y|26 closes a circuit from ground, through the'makeicontact of that spring, through conductor |62, through the winding of motormagnet |01 the 'totala'dd-Y' ing machine counter, this magnet operating to operate 'the counter and thereby register the $2.00 bet. The checking circuit ground previously placed on conductor |86 now extends over a circuit through spring |46 of relay 1 and its make contact, conductor |60, through spring of magnet and its make contact, conductor |6|, spring |29 and its break contact,

through spring |33 and its make contact, through conductor |14, through resistance |58 to the previously traced circuit through relays I0, 23, and 3|, whereupon relay 23 operates to operate the ticket machine to print and issue a ticket, as before. Relay 23 opens the circuit through relays |0 and 3|, whereupon relay |0 falls back and opens springs |53 and |54 to open the previously traced circuits through relays 42 and 1, and relay 3| falls back to restore relay 32. The previously traced circuit through the motor magnet 35 is broken by the restoration of relays 42 and 32 whereupon that magnet restores and the springs 3|2 open the acknowledging circuit to restore the runner adding machine to normal and thereby complete the registering of the $2.00 bet therein.

Restoration of relay 1 breaks the previously traced circuit through the motor magnet Il, thereby to restore that magnet to normal to complete the registration of the bet in the total adding machine, and at springs |0|, magnet breaks a point in the acknowledging circuit, that circuit likewise being opened by the restoration of springs |46 of the relay 1. The $2.00 bet having thus been registered inthe total adding machine and in the individual runner adding machine and the equipment restored to normal, the system is then ready for the accepting of another bet.

PLAcrNc A $5.00 BET As has been previously pointed out, the register mechanism of the runner adding machine and the register mechanism of the total adding machine are keach operated once for each $2.00 bet received. When a l$5.00 bet is placed, these registers must, therefore, be operated twice and in addition $1.00 of the $5.00 must be stored in the $1.00 bet storing mechanism. This gives rise to two operating conditions, the one occurring when a $5.00 bet is received at a time when there is no $1.00 bet stored in the mechanism and the other condition arising when a $5.00 bet is received at a time when there is a. $1.00 bet stored in the register mechanism.

First we shall consider the former condition, that is, a $5.00 bet received where there are no $1.00 bets stored.

'Ticket machine TM5 is one of a group of ticket machines issuing $5.00 tickets and for convenience we will assume `that the $5.00 bet.

relay I0 and wiper 202 as before and conductor 212, spring 230 and its break contact, through the upper winding of relay 24, spring 224 and its `make contact, multiple conductor 264, conductor 251, through the winding of relay 3| to battery.

Relays l0, 3| and 32 operate over this circuit as before.

Registering the bet in the runner adding machine The operation of relay l0 at springs |53 closes a circuit from ground through conductor 254 and collector wiper 203 now engaged with a contact to which conductor.210 is connected, the circuit extending over that conductor through the winding of $5.00 selective control relay 43 in the runner adding machine control unit to battery. Thisw relay operates over this circuit and the springs 424 closes a circuit from ground through the make contact of that spring to conductor 351 thence through make contacts 305 of relay 32, that relay having been operatedas before, to relays 33 and 34 to energize relay 34 through both its windings and to energize relay 33 through its upper winding only, whereupon relay 33 operates. Operation of relay 33 transfers the previously traced circuits through the upper windings of relays 33 and 34 from grounded conductor 35| to reset conductor 350 without eiect at the moment since this latter conductor is also grounded.

A circuit is now extended from ground through spring 309 and its break contact, spring 308 and its make contact, conductor 352, through spring 301 and its make contact, conductor 358, through the winding of relay 44 to battery. Relay 44 operates over this circuit, without eifect at the moment. Relays 46, 41, 48, 49 and 50 of the common control equipment, Figure 4, function to generate and count impulses delivered to the motor magnets, such as 35 or 40 of the counters in the individual adding machines. The number of pulses so generated and delivered depends upon which one of the selective control relays 4|-45 inclusive is operated to initiate the operation of relays 46-50, inclusive, as will hereinafter appear. Relays 46-50, which may be called impulsng or control relays, in registering a $5.00 bet, function to operate the motor magnet of the counter twice.

The operation of relay 43 also closes a circuit from ground through spring 4|3 and its make contact, conductor 45|, through spring 4|1 and its break contact, spring 4| 9 and its break contact,

' conductor 450, spring 420 and its break contact,

conductor 36|, spring 3|3 and its make contact, conductor 354, through the winding of motor magnet 35 to battery, operating the motor magnet to thereby operate the counter one step.

The operation of motor magnet 35 closes a circuit from ground through spring 3|2 and its` make contact, conductor 353, spring 3|I and its make contact, conductor 359, spring 425 and its break contact, conductor 464, spring 421 and its break contact, conductor 459, thence through parallel paths, the one extending through spring 406 and its break contact, through the lower winding of differential relay 48 to battery and the other extending through main spring 405 and its break contact, thence through parallel paths the one through the upper winding of differential relay 41 to battery and the other through the upper winding of differential relay 48 to battery. Relay 41 operates `over this circuit but relay 48 does not since it is energized through both of its windings.

Relay 43 also closes a circuit from ground through spring 433 and its make contact, conductor 451, thence through parallel paths through springs 435 and 436 and their respective break contacts, conductor 456, through the make contact of make before break springv 405, through the previously traced circuits through the upper assavse f winding of relays 41 and 48. Relay 41 is thus locked in energized position tothe ground on conductor 456 and the upper winding of relay 48 is energized over a different circuit than the lower winding, without effect at the moment. The operation of relay 41, at springs 411, opens the previously traced circuit for the motor magnet 35, whereupon the motor magnet de-energizes to `advance the counter onestep to register $2.00V

of the bet and to open springs 312 and thereby break the previously traced circuit from ground to conductor 459. Relay 48 being no longer energized through its lower winding but being energized from ground on conductor 456, through its upper winding, operates.

'I'he operation ofl relay 48, at spring 418 and its make contact, closes a circuit from ground through spring 413 and its make contact, conductor 45|, conductor 463, through the make contact of and spring 418, through spring 419 and its break contact, conductor 450, spring 420 and its break contact and thence over the previously traced circuit through conductor 36|, through the motor magnet 35, whereupon the motor magnet again operates and re-applies ground through springs 312 to the conductor 459v over the previously traced circuit, that ground now extending the circuit through spring 406 and its make contact, through the lower Winding of relay 41 to battery. Relay 41 now being energized through both of its windings restores to normal. A circuit may now be traced from ground through spring 408 and its break contact, spring `40E! and its make contact, through the winding of relay 49 to battery, relay 49 operating over this circuit and locking itself through spring 401 and its make contact, to grounded conductor 456.

The operation of relay 49 moves spring 419A `away from its break contact, thereby to open the previously traced circuit for motor magnet 35, causing that magnet to restore and operate the .counter for a second time and to open springs 312 and its make contact, conductor 460, spring 431 and its make contact, relay 44 having been operated as above explained, spring 428 and lts make contact to the $5.00 acknowledging conductor 181.

Registering the $5.00 bet in'the total adding machine The operation of relay Ill-as above explained extends a circuit from ground, through spring |54 and its make contact, wiper 204 now engaging the contact to which conductor 183 is connected, through Winding of $5.00 selective control relay 8, to battery, -operating that relay.

The operation of relay 8 closes a circuit from ground, through spring 140 and its make contact, conductor 163, thence over parallel paths, the one extending through conductor 104, spring |01 and its break contact through the lower winding of relay O2 to battery, and the other extending through the break contact of and the main spring |02, thence over parallel paths, the one through `the upper Winding' of relay O1 to battery, and

the other through the upper winding relay O2 to battery.

Relay O1 operates over this circuit and locks itself through spring 102 and its make contact to ground on the reset key 155. Relay O2 being energized through both of its windings, does not operate at the moment. Relay O1 onv operating transfers the circuit just traced through the upper winding of relay O2 to ground at key 155, without eiect at the moment. Relays 1 to 5 inclusive of the total adding' machine function to generate and count impulses delivered to the motor magnet 11 of the register in the total adding machine. The number of pulses sogenerated and delivered depends upon which one of the selective control relays 6 to 9 inclusive is operated to initiate the operation of relays I to 5 inclusive, as 'will presently appear. Relays I to 5, which may Abe called either impulsing or control relays in registering a $5.00 bet in the total adding machine under the condtions'assume'd, function to operatie the motor magnet twice.

The operation of relay 8 also'closes a circuit from ground, through spring 121 and its make contact, spring 119 and its break contact, spring 121 and its break contact, spring 122 and its break contact, conductor 162, through the windingvof motor magnet I1 to battery, operating the motor magnet 11. At spring 101, magnet 11 closes a circuit which may betraced from ground, through spring 141 of the relay 8 and its make contact, conductor 160, spring 101`and its make contact, conductor 161, spring 129 and its break contact, spring 133 and 'its break contact, conductor 111, thence over parallel paths, the one extending through spring 109 and its break contact through the lower winding of differential relay 2 to battery, and the other, through the break contact of and main spring 108 thence through parallel paths, the one through the upper winding of relay 1 to battery and the other through the upper Winding of relay 2 to battery.

Relay 1 operates over this circuit but relay 2, being differentially wound and being energized through both of its windings, does not operate.

, Relay 8 also closes a. circuit from ground through spring |41 and its make contact, conductor 118, thence overL parallelfpaths through springs 143 and 144 and their respective break contacts to conductor 111, through make contact. of and spring 108, through the upper windings of relays` 1 and 2 to battery, relay 1 being locked in operated position over this circuit. The circuit through the upper winding of relay 2 is. thus transferred from ground on conductor 181 to ground on conductor 111, without effect at the moment.

The operation of relay 1 opens spring 119 from its break contact, thereby to break the previously traced circuit through conductor 162 to the motor magnet 1 1, whereupon that magnet restores to advance the counter one step and to Winding is already energized, relay I restores it to normal position.

A circuit may now be traced from ground, through spring ||2 of relay I and its break con- `tact, spring ||3 and its make contact, through The register having been operated twice and the $1.00 having been registered in the relays, a checking circuit may now be traced from ground on conductor |81, through spring `|,3I and its` make contact, conductor |12, spring |30 and itsv make contact, conductor |15, spring |34 and its make contact, conductor |14 through resistance |58 to the previously traced circuit through relays I0, 24, and 3|, to operate the relay 24.

Restoring the runner adding'A machine The operation of relay 24 starts the ticket machine TM functioning to print and issue a ticket and also the springs 230 break the previously traced circuit through relays I0 and 3| to permit those relays to restore. Restoration of relays 3| and 32 in the runner adding machine breaks the previously traced circuit from the ground on springs 424, through the lower winding of relay 34 to operate that relay over the circuit from ground through the reset key 302, through spring 303 and its make contact, through the upper windjng of relay 34 to battery. Relay 34 upon operating at springs 304 closes a vcircuit through the $1.00 lamp, causing that lamp to indicate that a $1.00 bet is stored in the relay equipment. Relay 33 which is locked in operated position through its upper winding to d ground on reset key 302, remains in operated position.

The de-energization of relay I0 opens the previously traced circuit for relay 43 by opening springs |53, thereby permitting that relay to restore. Restoration of relay 43 opens springs 433 to remove ground on conductor 456, thereby to permit relay 49 to restore. Restoration of relay 49 opens springs 44| to remove ground from the $5.00 bet accepting conductor |81.

Restoring the total adding machine Restoration of relay I0 also opens springs |54 to open the previously traced circuit for relay 8 which restores and opens springs I4I to remove ground from `locking conductor I`|| to permit relay 3 toV restore.

breaking the circuit through the lower winding Restoration of relay 8 also removes ground from conductor |63 thereby of differential relay O2, to permit the relay to l operate through its upper winding now grounded at spring |55. Relay O2 at springs |03 closes a circuit through the $1.00 lamp of the total adding machine, lighting that lamp to indicate the storing of $1.00 of the $5.00 bet in the total add;

' ing machine.

Restoration of relay I0 closes springs |52 to prepare the start circuit in readiness for the next 75 operation. As soon as the ticket machine TM5 has completed the operation of issuing the ticket, it also restores to normal.

PLACING A SECOND $5.00 BET oN RUNNER ONE Assume now` that the next bet placed in the system is also a $5.00'bet upon runner number 1.

lKey 224 will again be depressed and the previously traced circuit for relays I0, 24 and 3| will previously traced circuits for relay 43 in the runner adding machine control and relay 8 in the total adding machine. The previously described circuits for sending two pulsesto the motor magnet 35 of the register will be closed as before. However, since there'is already a $1.00 bet stored in the relays 33 and 34 on the runner adding machine as indicated`- by the lighted condition of the $1.00 lamp and since there is an odd dollar in the $5.00 bet now being registered, and since the sum of these two $1.00 bets equals $2.001 the register must again be operated as follows:

Upon operating, relay 43 closes the previously traced circuit from ground through spring 424, conductor 351, spring 305 and its make contact, conductor 35|, thence through spring 306 and its make contact, through the lower winding of relay 33 to battery. Relay 33 now being energized over both of its windings restores to its normal position and at spring 308 opens a second point in the circuit of relay 44 so that that relay remains in its normal position. Relay 49 having been energized to terminate the second impulse to the motor magnet 35 to permit that motor magnet to restore and relay 48 now being restored to itsnormal position at the end of the l second pulse to the motor magnet 35 as explained above, a circuit may now be traced from ground, through spring 4|3 and its make contact, conductor 45|, spring 4|1 and its break contact, spring 4|8 and its break contact, conductor 452, spring 4|5 of relay 44 and its break contact,

conductor 453, spring 42| and its break contact,I spring 420 and its break contact, thence over the previously traced circuit Vthrough conductor 36|, through spring 3|3 and its make contact, Y

the winding of relay 50 to battery, relay 50 oper-v ating and locking itself through springs 404 to conductor 454 which is grounded by springs 403 and 40|. The operation of relay 50 breaks the circuit through motor magnet 35 at springs 420 l to permit that motor magnet ,to fall back and complete the registration of the third $2.00 bet which as previously explained was composed of the $1.00 bet previously stored in the machine and the $1.00 from the $5.00 bet now being registered. Operation of relay 50 closes a circuit `from ground, through spring 442 and itsmake contact, conductor 46|, spring 43| and its break contact,

Registering the second $5.00 bet in the total adding machine In the total adding machine, upon the energization of relay 8 at the beginning of the operation, springs |40 place a ground on conductor |63 therebyto energize. both' windings of relay relay O2 having been locked in energized position at the completion of the storing of the $1.00 part of the previous $5.00 bet. `Relay 0| restores to normal and relay 02 remains energized for the moment.

The motor magnet is operated through twoy pulses in the manner explained in the previous $5.00 bet at the end of which relay 3 becomes energized to break the circuit of the magnet by opening springs |2| during the second of these two impulses and relays and 2 are both restored to normal as before. Thus, at the completion of the second pulse to the register motor magnet I, a circuit may be traced from-ground through spring |21 of relay 8 and its make contact, conductor |65, spring |2| and its make contact, spring |20 and its break contact, conductor |69, spring |25 and its make contact, conductor |10, spring |23 and its break contact, springA |22 and its break contact, through conductor |62 over the previously traced circuit through the motor magnet to battery. The motor magnet is operated for a third time over this circuit and ground is placed upon conductor |11 as before t0 energize both windings of relay 2 and one winding of relay I, whereupon relay operates. Relay I being operated and relay 2 being normal, a circuit may be traced from ground through spring ||2 and its make contact, spring I|4 and its break contact. spring and its make contact, through the winding of relay 4 to battery, operating relay 4 which locks itself through spring to'ground at spring |06. At springs |22, relay 4 breaks the circuit of motor magnet to permit that magnet to restore to normal and complete the registering of the third $2.00 bet..

Upon completion of this operation, the grounded circuit previously traced to conductor |81 from the runner adding machine control unit is extended through spring |32 and its make contact, conductor |13 through spring |30 and its break contact, conductor |15, spring |34 and its make contact, conductor |14, through resistance |58 to the previously traced circuit through relays |0, 24 and 3| and relay 24 operates over this circuit.

The operation of relay 24 breaks the circuit oi.' relays.|0 and 3| to permit those relays to restore to normal and in th'e runner adding machine, restoration ofA relay 3|.restores relay 32.

', operate.

Relay 34 which has been locked in operated position through the break contact of spring 303 'to conductor 35|l is restored to normal by the restores relay 50 to normal so that all of the' Y counting relays in the runner adding machine control are back to normal.

In the total adding machine, restoration of relay i0 breaks the circuit of relay 8 of the total adding machine control to permit relay 02 and the control relays i, 3 and 4 all to restore to normal in readiness for thenext operation.

yPLACING $10.00 Bar Ticket machine TMI0` is one of the group arranged to print and issue $10.00 tickets and assume that TM|0 is operated to place'a $10.00 bet on runner number 1. This is done by closing ticket machine key 226 whereupon spring 221 extends start ground from conductor 262, through spring 229 and its break contact, tostart conductor 252 to close the previously traced circuit of the motor magnet for the collector, causing that collector to operate buzzer-like fashion so as to bring wiper 202 into engagement with the contact to which conductor 213 is connected. The bet accepting circuit is closed as before through relays I0 and 3| extending this time through the upper winding of relay 25 oi.' the ticket machine TM5 and the key 228 and its make contact. The operation of relay 3| operates its slave relay 32 as before and the operation of relay I0 opens the start circuit at springs |52 and closes springs |53 and |54 as before, spring |53 closing a circuit from ground through wiper 203 which now engages the contact to which conductor 21| is connected. This circuit is extended through relay 45 of the runner adding machine control to battery, to operate that relay.

Registering the, bet in the runner adding-machine In order to register the $10.00 bet, it is necessary thatthe register motor magnet be enerfrom the break contact tospring 4|'1, through the break contact of spring 4| 9, to the break contact of spring 420. The previously traced circcuit from conductor 36| through the motor magnet 35 is closed to operate that magnet. Spring 3|2 closes a circuit from ground over the previously traced circuit to conductor 459, thence over the previously traced parallel paths through the upper winding of relay 41 and the upper and lower-windings of relay 48, to cause relay 41 to Relay 45 placed ground upon conductor 456 by closing spring 434 so that relay 41 upon operating locks up to this conductor, and the circuit through the upper winding of relay 48 is transferred to conductor 453 as before. The energization of relay 41 breaks the circuit of the motor magnet 35 by opening springs 4|1, causing the motor magnet to restore and open springs 3|2 therebyto remove ground fromconductor 459. 1

Relay 48 being no longer energized through both of its windings operates through its upper winding so that at the moment both relay-s 41 and 48 are in operated position. The rstpulse to the motor magnet is thus completed.

The second pulse is transmitted upon the operation of relay 40 by spring 4|8moving into engagement with its make contact, ground being now placed on the conductor 38| from grounded conductor 45|, through spring 4|8 andits make contact, spring 4|9 and its break contact and spring 420 and-its break contact. The motor magnet is energized for a second time and again closes springs 3|2 to re-apply ground to conductor 459, whereupon relay 41 becomes energized through its lower, as well as its upper winding, and restores to its normal position. Restoration of relay 41 transfers the circuit through the upper winding of relay 48 back to Conductor 459 without efect at the moment since there is a ground on that conductor.

A circuit may now be traced-trom ground through spring 408 and its break'contact, spring 409 and its make contact, throughi-thewfwinding of relay 49 to battery, operating that lrelay which locks through its spring 401 and its make contact to grounded conductor 456. Relay 49 upon operating opens the circuit of motor magnet by moving spring 4|9 from its break to its make contact, whereupon motor magnet 35 falls back to completethe second pulse andto open spring 3|2. This removes ground froingnnnductor 459 thereby permitting relay 48 to resicre to its normal position. jf

The circuit of motor magnet Il is closed for a third time from grounded conductor through spring 4|1 and its breakfcontact, spring 4|8 and its break contact. conductor 452, spring 4|6 and its make contact, conductor 453, spring 42| and its break contact, spring 428 and its break contact to conductor 36|, the motor magnet operating andagain closing spring 3|2 to re-apply ground to conductor 459 thereby to energize relay 41 through its upper winding and relay 48 through both of its windings, to cause relay 41. to operate. On operating relay 41 transfer the circuit through the upper winding of relay 48 to conductor 456 without effect. Relay 41 upon operating breaks the circuit of the motor magnet 35 by opening springs 4|1, whereupon the motor magnet restores to end the third pulse and opens springs 3|2. Relay 41 upon operating also closes circuit'from ground through spring 408 and its make contact, spring 4 0 and its break A contact, spring 4| I and its make contact through the winding of relay to battery, energizing relay 50 at the springs 420, opens another point in the circuit of motor magnet 35. Relay 50 locks through springs 404 to grounded vconductor 454. The energization of relay 50 also opens, at spring 435, a point in the circuit over which ground is placed on lookin-g conductor 456 and at springs 438 closes a circuit which may be traced from ground through spring 430 of relay 45 through conductor 458, springs 438 and its make contact, through the winding of relay 46 to battery, relay 46 operating over this circuit and locking itself to conductor 458 through springs 431.

Relay 46 also opens springs 436 thereby to remove ground from conductor 456 to permit relay 41 and relay49 to restore to normal. Relay 48 already being 'at normal, ground is removed from conductor 454 to permit relay 50 Yto restore to normal.

The circuit of the motor magnet is closed for the fourth pulse over a circuit from grounded conductor 45|, through spring 4|1 and its break contact, spring 4|9 and its break contact, spring 420 and its break contact to conductor 36|, the magnet 35 operating to close springs 3|2 and again apply a ground upon conductor 459 to'cornplete the parallel circuits through the upper winding of relay 41 and both windings of relay 48, thereby to operate relay 41 which transfers the upper winding of relay 48 to grounded conductor 456 and breaks the circuit of the motor magnet by d opening springs 4|1, whereupon motor magnet 35 falls back to end the fourth pulse and to remove ground from conductor 459.

As soon as ground is removed from conductor 459, the circuit through the lower winding of re` lay 48 is broken, whereupon the relay operates through its upper winding. The circuit of motor magnet 35 is closed for the fifth time from ground conductor 45| through. conductor 463, spring 4|8 and its make contact, -spring 4|9 and its break contact, conductor 450, through spring 420 and its break contact, to conductor 35|, motor magnet 35 operating and again closing spring 3|2 to re-apply ground to conductor 459, whereupon both windings of relay 41 become energized and that relay moves to its normal position. A circuit may now be traced from ground through spring 408 and its break contact, spring 409 and its make contact, through the winding of relay 49,

that relay operating to open the circuit of they motor magnet 35 by moving spring 4|9 from its break to its make contact and to lock itself through spring 401 to conductor 456. The previously traced circuit over which the third impulse to the motor magnet was transmitted is now open at spring 42| on relay 5 so that no more pulses can be sent to` the motor magnet and the registration of the $10.00 bet is therefore complete, the magnet having been operated five times.

An acknowledging circuit may now be traced from ground, through spring 439 and its break contact, spring 440 and its make contact, conductor 463, spring 443 and its make contact, conductor 462,` spring 432 and its make contact to the $10.00 acknowledging conductor |88.

Registering me' $10.00 bet in me total adding machine In the total adding machine, the operation of relay 9 closes a circuit for the motor magnet of the register which may be traced from ground, through spring |28 and its make contact, spring ||9 and its break contact, spring |2| and its break contact, spring |22 and its break contact, conductor |62, through the winding of the magnet to battery. The magnet c-perates on this first pulse to close springs l0 I. l

A circuit may now be traced from ground, through spring |49, conductor |60, spring |0| and its make contact, conductor 6|, spring |29 and its break contact, spring |33 and its break contact, conductor`l11, thence over parallel paths through the upper winding of relay and the upper and lower windings of relay 2, relay operates over this circuit and the springs |9 open the circuit of magnet to permit that magnet to fall back, thereby to complete the iirst pulse.

Relay 9, at springs |42' closes a circuit from ground to conductor |18, the circuit extending therefrom through parallel paths through springs |43 and |44 to conductor |1|. On operating, relay locks itself through its upper winding and springs |08 to conductor |1| and at the same time transfers the circuit for the upper Winding of relay 2 from conductor |11 to conductor |1|, without effect at the moment since both conductors aregrounded.

Opening the springs |0| removes ground from conductor |11, whereupon the circuit through the lower winding of relay 2 is broken and that relay operates over the circuit through its upper winding. The operation of relay 2 closes the previously traced circuit Ifrom ground to spring |28l through conductor |65, through the make contact of spring |20, through conductor |66 and The circuit through the upper` winding ofy relay thence overV the previously traced circuit through the motor magnet II to battery to operate that magnet for a second-time. l v Springs IIII re-apply ground to conductor. |11 thereby to energize relay I throughv both of its.. windings to cause that relay torestore tonorrnal.`

2 is transferred back to conductor ITI by springs |08, without eifectat the moment. A circuit may now be traced from vground through spring ||2 and its break contact, springJ I3vand its make contact, through the windingyof relay 3 to battery. operating relay 3.which locks through ,spring |I to grounded conductor I'II. Relay 3 opens spring |2I from its break contact thereby to break.. the circuit of motor magnet I| tol cause that motor magnet to fallback at the end or the second pulse, spring IIlIv removing ground .from

conductor IIl. Relays I and 2 now beingv deenergized are both in normal position. Y- f The circuit of motor magnet II is closed for a third time from ground on conductor |65, through spring I2| and its make contact, conductor |66, spring |20 in its break contact, springv|24 and its make contact, conductor |10, to spring |23 and its break contact over the previously traced circuit to the magnet. 'I'he magnet II operates for a third time and spring I0| again places ground upon conductor II'I. y i v The grounded circuit through conductor |111` extends over the same parallel paths as for the first pulse, that is through the upper winding lof relay I and throughboth windings of. relay 2, operating relay which transfers the .v circuit through the upper winding of relay 2 to ,conduc-"g,35 tor Il I, without eiect at the moment.

A circuit may be traced now from ground, through spring |I2 and its make contact, vspring |I4 and its break contact, spring ||5 and vits make contact, through the winding of relay 4,` relay 4 operating over -this circuit and locking itself in energized position to grounded conductor |68 through springs II I, f

A circuit may now be traced-from ground, through spring' |48 and its make contact,.-conduc" v tor |19, spring |50 and itsmake contact through the Winding of relay 5to battery, operating the relay 5 which locks through spring |,5I to grounded conductor, |19. v f 1 A; l

Relays 4 and 5 now both being operated-springs..- |43 and |4.4.are both open so that ground 'is removed from conductor III.y The circuit ofthe motor magnet having been broken by the opening of springs |22 and relay yII energized, the v,magnet is restored to endvthethird pulse andthe springs; f IIJI remove ground from conductor I'I'I `so lthat relays I, 2, `3and 4 are all permitted to restore to their normal position. f

The circuit of motor magnetII is closedfor the fourth time over the same circuit as lfor the4 iirst pulse, and for a fth, time over the same circuit as'the second pulse, the magnet is prevented from operating a sixth time since thecircuit for the third pulse to the magnet yis held open by springs |23 ontherelay 5, and the registration of the$10.00 bet is, therefore' completed.l

The checking circuit ground on the $10.00 acknowledging conductor |88 is now extended from ground through spring I3'Iand` its break contact, spring |38 and its make contact, spring I 3B and its 7 make contact, spring |35 and its make 4contact to conductor I'I4 through the resistance |58 to the previously traced bet accepting circuit through relays |0, 25 and 3|. The relay 25 operates over this circuit to initiate the operation vof` the ticket hasbeen `made off the Ypool'in which the bets ment shown in Figures 1 to 4 inclusiveis in the `vIn the' combination group, A:there is provided a machine TM5 and at springs 23| opens the cirr V4cuit for relayssIIl and 3| to permit them to rev`store to normal,` and thereby restore to normal .etherunner adding machine and the total adding machine in the hereinbefore explained manner. 2 -In the foregoing description ofthe placing of .00 bet and $10.00 bet, and. registering thefsame inthe total adding machine and individual runner adding machine corresponding` tothe selectedrunner, no mention have been placed. As is well understood by those skilled in the art, the totalizer yequipment such as hereinbefore describedy is employed in triplicate, that is,fa complete set of equipment for the win pool, a similar set of equipment for the place .pool anda thirdset of equipment for the show pool. It-,also frequently happens that combination tickets are to be sold, that is..a single ticket is issued for three bets on a particular runner, one betfor that runner to win, a second bet for that runner to place and a third bet for'that runner toshow. YIn Figure 5, I have shown equipment for issuing and vregistering such combination tickets. v

Assume now for the moment that the equipwin pool and that the vcombination tickets are for a $1.00 bet-in each of the win, place and show pools, the operation of the system will be as fol# wingroupfcontrol, relayl, a place bet ygroup l control relay v52, and a showbet group control,

relay 53,rv together with a masterv combination control relay 54. Ticket machines 56 and 51 are respectivelythe first and last ticket machines in thecombination group, these ticketvmachines beingidentical-with thel others:` insofar as'the electrical circuits areconcerned. Each ticket machineisprovided-with a key for each runner, the

key I.":Illvaof'the ii'rst ticketV being assumed to be the key fory runner number lyand key '502 the key :fQIF-the last'runner. Relay 58 is connectedin cir- ,cuit `withfthe rst runner keys such as and i503. of all of the ticket machines inthe group Vand relay; 59.15 `connected in circuit vwith the last runner key such-asV 502 and y501| in all ofthe lticket machinesof'vt'hegroup.: It will be understoodv-that-additional.keys andrelays have been yprovided but these have :been omitted from vthe Vdrawings to-v avoid -unnecessary complication thereof.

f" :PLAcINc A CoMerNArIoN Brr oN RUNNER f y' NUMBER I n Assume for the moment thatvticket machine 58 is operated to place a combination ,bet :in runner `number 1. Key 50| willvbe depressed thereby to close acircuit from ground through spring 5|0 yand its make contact. springSII and its'break contactgspring 5|22 andits break'contact, spring B Iand its .break contact, through the Winding of Vmotor magnet 60 to battery, operating the motor vmagnet which breaks itsV own circuit by opening springs; 5I3., Motor magnet operates in buzzerlike fashion-,to advance wiper. 550 until .that wiper engagesthe contact to which conductor is connectedpat which time acircuit may be traced fromground through relay 6|,1wiper 550, canductor 55|, spring 5|4 of relay v|52 and its'break fcontact,` through the upper windingof relay 62. through key spring-50| and its make Contact. conductor 552, through theV winding of relay 5B ,-to battery. Relay 6I operates'over this circuit and at spring 5|2 opens the circuit of the motor magnet 80 to bring the collector to rest. Relay 58 also operates over this circuit. However, ticket machine relay 62 does not operate at the moment.

The operation of relay 58 at springs 5|5 closes a circuit from ground through the winding of relay 54 to battery to operate relay 54. At springs 5|6, relay 58 closes a point in the bet accepting circuit of the win pool, that circuit being, at the moment, open elsewhere. At

springs 5|1, relay 58 closes a point in the bet accepting relay of the place pool and at springs 5|8 a point lin the bet accepting circuit of the show pool which circuits are likewise, at the moment, incomplete.

The operation. of relay 54, at springs 5|9, closes a circuit which may be traced from ground through that spring and its make contact, spring 520 and its break contact, start conductor 252 of the win pool, spring |52 and its make contact of the bet accepting relay i in the total adding machine of the win pool, through spring 223 and the motor magnet 2| of the win pool collector to battery, operating that collector step by step until its wiper 202 engages the contact to which conductor 214 is connected.. A'circuit may now be traced from ground through relay |0 of the total adding machine, wiper 202, conductor 214, spring 520 and its make contact, through the upper winding of relay through spring 52| and its break contact, spring 5|6 and its make contact, conductor 264, conductor 251, through the winding of relay 3| to battery. Relays |0 and 3| operate over this circuit but relay 5| does not operate.

At the time that wiper 202 engages the contact to which conductor 214 is connectedpwiper 203 will be in engagement with the contact vto which conductor 268 is connected andthe previously traced circuit for relay 4| of the individual runner adding machine control will be 'closed and that relay will operate to cause the storing of a $1.00 bet in the individual runner adding machine number 1, that registration being accomplished in the hereinbefore explained manner. Wiper 204 will be in engagement with the contact to which conductor 28| is connected to close the previously traced circuit for relay 6 of the total adding machine, operating that relay to effect the storing of a $1.00 bet in the total adding machine. At the completion of this operation, the hereinbefore described checking circuit will be closed through resistance |58, wherupon relay 5| will operate and through spring 520 and its make contact lock itself in operated position through its lower winding to ground at spring 5|5).

Simultaneously with the foregoing operation, relay 54, upon operating, at springs 523 places ground on a circuit extending through springs 524 of relay 52 to the place pool start conductor 252a, thereby to close a circuit for the collector of the start pool which is exactly the same as that Justv described for the win pool. When that collector has selected the contact to which conductor corresponding to conductor 214 is connected, the bet accepting relay |0 of the place total adding machine will extend a circuit to conductor 214a, that circuit extending through spring 522 and its make contact, through the upper winding of relay 5'2, through spring 525 and its break contact, spring 5i1- and its make contact, and thence to conductor 264e which leads to the bet accepting relay of the number 1 runner in the place pool, which relay corresponds to relay 3|. 'I'he $1.00 bet is thereupon stored in the individual runner addins machine and the total adding machine of the place pool in exactly the same manner as hereinbefore described, at the end of which operation the acknowledging circuit through resistance |58 of the total adding machine of the place pool increases the current ow to operate relay 52, which locks itself through its lower Winding and spring 524 and its make contact to ground through spring 523.

Simultaneously with the foregoing operations, relay 54 at springs 521 extends start ground through spring 528 to start conductor 252b of the show pool, thereby to operate the collector of the show pool in the hereinbefore described manner to establish a circuit from the bet acceptingl relay I0 of the total adding machine of the show pool and conductor 214b through the upper winding of relay 53, spring 529 and its break contact, spring 5|8 and its make contact to conductor 28417 leading to the bet accepting relay of the individual runner adding .machine number 1 in the show pool, that relay corresponding also to relay 3|. A $1.00A storing is thereupon made in the total adding machine and individual runner adding machine of the show pool in the hereinbefore described manner and at the end of the registration the current iiowing in the circuit is increased to operate relay 53 which locks itself through its lower winding and spring 528 to ground at spring 521.

A circuit may now be traced from ground through resistance 530, through spring 53| of relay 5|, spring 532 of relay 52, spring 533 of relay 53 and their respective make contacts through wiper 550, conductor 55|, spring 5|4 and its break contact, thence over the previously traced circuit through the upper winding of y relay 62 and relay 58 to battery. Relay 62 operating opens at springs 5|4 the previously traced circuit for relay 58, whereupon that relay falls back and at springs 5|5 opens the previously traced circuit for relay 54 to permit that relay to restore. Restoration of relay 54 opens the locking circuits for relays 5|, 52 and 53 to permit those relays to restore, thereby to restore the combination ticket group to normal in readiness for the next operation. As soon as the ticket machine 56 has completed its operation, spring 50| is restored as before.

As shown in Figure 5, the combination ticket machine group collector. including wiper 550, has access to five ticket machines, the first and last of which are shown. It will be understood that the other bank contacts over which wiper 558 passes will be multipled to give that wiper access to the iive ticket machines in sequence. As shown in Figure 2, conductor 214 is connected only to one bank contact.- It will be understood that this wiper may be multipled into other bank contactsv so that the combination ticket machine group will be available to the wipers of the collector-s more frequently.

From the foregoing it willbe seen that the totaiizer system of my invention is possessed of many advantages. Inexpensive counters are employed to register the sale of tickets, those counters being operated once or a plurality of times depending upon the value of the ticket sale being s ings ofthe invention. f I Having .thus compl-iecll with-.thc statutes-andi registered. Each time the counter is operated a $2.00 sale is registered and lamp means are provided to indicate the presence of odd dollar sales in the equipment. The simple relatively inexpensive equipment employed permits the system to be used under conditions underwhich the Alarger systems of the prior art would be prohibitive in cost.

While I have chosen .t o show and describe a preferred embodiment of my invention", I have.

done so by Way of example only, as there are f1 many modiflcationsfqand adaptations which can y be made by one skiiidin the art within lthe teachchine, said ticket machine and a selected one of said individual yrunner adding machines, and means for operating the counters of both the total and individual adding machines each twice and the accumulating relays oi.' both the total and individual adding machines each once to register and store the ve-unit value in said total and individual adding machines. r 4. In a totalizer system an adding machine containingya pair of relays for accumulating l single-unit values, anelectro-magnetically operated counter arranged to counttwo-unityalues,

l relay means for controlling said counter, a fivel unit value ticket machine, means for operating y 15 s'aidticket machine to establish a connection with said addingmachine, means in said adding mashowfild described-2a.preierredembodiment off my inentiomwhatl considerfnewfand desire to` have protected bygpetters Patentgis pointed j out Y n'theappended.' aims.

1s claimed'li's: f 1 l. In 'a totalitari-system.. a 'total .addinglma-l chineoperated over said connection for actuat- 'ing said relay means to operate said counter twice fand to actuateone'of said pair oi accumulating relays tostore a one-.unit value, and/means for controlling said relay means to operate said chine including a. control means and anaccept-- 'ing'relay, a plurality oi ticket-:machineseach are' ranged to print ticlletsv oi' a particular value, a 'collector for extending a circuit fromf-said'accepting! relay to said ticket machines.orieliat'af'time, a plurality of individual adding'xnachines each in-f cluding an acceptingrelay'gmans. said 'ticket4 machines for' extending 'laid tci'rcuit' from. said 1^ f total adding machine' acceptingfr ejlaytothe!ad.l

cepting relay in' one o! said individualjaddngma? chines to operate said.accep'tins1-relays,.acontrol 1 means common to said plurality jofvindividual ladding machines, means controlled byfsaid operi. ated individual adding machine accepting relayy for. connecting said commonA controlmeanstosaid counter avthird time when said one-'unit value is 1 addedl to a one-unit value. previously stored i-n said pair ofv accummulating relays.

f5. Ina vtotalizer system, a counter, a motor- Lfma'gnetfor said Vcounterfa selective* control relay "T-,forljeach value to be registered on said counter,

a pair i offpulsin'g relays,v control relays, circuits mr-*Saidcontrol relays contr'dled` by said pulsingI relays, `a5 circuit. for said. motor magnet extend.-

ingfthroughi a chain'of contacts controlled by said :control relays,.pulsing"relaysand'seletive y control relays, an' operating circuit forfsaid pulsf ingrelays controlled by said motor -magnet and individual adding machine,"means in Said'coliecf' tor for extending a vcircuit :from-control means operated bysaid total."addi ng` machine relayyto* said common ccntrolmeansftooperatesaid register a Lvaluev therein *corresponding to. .the

4 value oi the tickets printed A'by thegtickeizy ma-f chine to whichthe total adding'lmachine is then connected. and means in said :collector ,lor extending a circuit from Vother nieans'operated by to control said lindividualaddingZ't'cia'chitie 'tofr `means establishing a circuit over which said control 'v relay is operated, means for preparing a total adding 'machine accepting/relay 't0' said.

total adding machine control meansl'to operatev` said means. to control vsaidtotal adding machine '50 to registerthe same value therein.

2. In atotalizer system, a plurality oi?l individualrunner adding machines', a pair of relays in each of. said machines, a counter ineach adds ing machine, electro-magnetic means fi'pelating said counter,-c ontrol relays common to said plurality of individual; adding machined-means: for selectively connecting" said commonv vcontrol relays to said ladding machines `one at a'ltime,

and a circuitrfor the electromagnetic means of the adding machineto which said common control relays are'V connected,` whichl circuit exfsaid ticket machine to said adding machine, said circuit .for Vsaid differential relays,`means closed 'by saidy control" relay vin operated .position for closingsaid c ircuitto energize both ofthe windings of one. of said diilerential relays and one of thev'windings of the other one -oi said differential relays to operate the latter relay, means in said 55, ticketmachine'for opening thecircuit over which `lay, meansfor holding saido'perated differential ,relay in operated position'` 'andfor operating the other' diil'erential relay upon the restoration of A said control' relay, and meanscontrolled by said'.A other differential relay'inv operated position forindicating lan operation of said ticket machine.

.7., lIn a totalizer system, acounter, a magnet tends through. contacts on thepair of relays inn f said adding machineand on Vsaid 'common control relays .to operate said electro-magnetic means.

3. In a totalizer system. a total adding machine, ,a plurality oi individual 'runner adding machines, an electro-magnetically operated group, means'for closing said circuit to operate.

counter in eachof said individual runner adding',

machines and said total adding machine adapted to register two-unit values, laccumulating relays in each of said adding machines'adapted to store single-unit values, a ticket printingmachine adapted to print iive-unitjvalue tickets, means for connecting together said total adding masaid control relay is operated to restore said re.-

for operatingsaidjcounter, al control relay group, a pair of differentially wound'relays includedl in said group, a circuit for said magnet extending rthroughla chain of contacts in said .control relay saidmagnet, contactmeans closed by said magnet, circuit means controlled .bysaid magnet con-` .tact "meansfor `v'energizing both windings of a second and one vwinding of a rst one oisaid differentially Vwound relays to operate said ilrst one of them, saidiirst differential relayon operating locking itself and opening said magnet 14 0 circuit to permit the magnet to restore, `said magnet upon restoring operating said magnet contact means to open the circuit through one winding of said second diierential relay, said` second differential relay operating to reestablish said magnet circuit to operate the magnet thereover, said magnet re-closingsaid magnet contact means to. close a circuit through the second winding of said first diierential relay to restore the first one of said differential relays, means controlled by said differential relays for operating the other relays of said control relay group in sequence to control the operations of said magnet, and means includingv a contact set in each. arranged to print tickets of avalue particular to that machine, collector means .for extending a circuit from said adding machine accepting relay to said ticket machines one at a time, a

plurality of individual adding machinesv eachY comprisingV a counter, accumulatingrelays and an accepting relay, means ineach` ticket machine for selectively extendingsaid circuit from said.v total adding'machineto one of Asaid individual' I addingmachines, control means` forjsai'dftot'al adding machine,` control means common tosaid plurality of individual adding.. machines, means.'

in said collector means forextending.v circuits to individuaiadding machines to register the same ticket value therein, meansin said common control means operated at the completion of the` l registering of said ticket value'in Said individual adding machine for extending a checking circuitv through said total adding machine control means to said total adding machine and over said accepting relay circuit to said' ticket machine, and

an accepting relay, a plurality of ticket machines. each arranged to print tickets of a valueparticular to that machine, a collector for extending a circuit from said total adding machine accepting relay tov said ticket machines one at a time, a.

plurality of individualy adding machines each.'

comprising a counter, accumulating relays, and' an accepting relay, means in each ticket'machine for selectively extending said total adding machine acceptingy relay circuit to one of said indi- V vidual adding machines, control means for said total adding machine, a plurality of conductors leading into said control means, control means. j common to said plurality of individualadding1 machines, a plurality of conductors leading into said common control means, means in said collector for extending control vcircuits to said total v and common control: means over conductors cor- I respondingto; the ticket machine to which the-l total adding machine is connected, means in sai-d total adding machine vcontrol means actuated* said total andl commoncontrolmeanspmeansin said total adding machinecon'trol meansl actuated over saidV circuit from said collectoi'- means for operatingfthat addingmachine to.. register means actuated over said circuit vfrom said collector means for simultaneously operating .the

. the value of the ticket. printed by the tiket'machine to which the total-adding machineis thenconnected, vand means in said common control selected one of said' individual adding "machines to register the same ticket value therein;

. '45 9. In aitotalizer system, ar total adding yma-` chine comprisinga counter, storage relays, and an accepting relay, a plurality of ticket machines f each arranged to print tickets of a value particular to that machine. a collector for extending a circuit from said total adding machine accepting4 relay to said' ticket'machines one at a time,

l a plurality of individual adding machines each comprising a counter, accumulating relays and an accepting relay, means in each ticket machine for selectivelyextending said total adding machine accepting relay circuit to one of said individual adding machine accepting relays, control means forsaid total adding'machine, aplurality l of conductors leading into said control means,

control means common to said plurality of individual adding machines, a plurality of conductors leading into said common control means, means in saidI collector for extending control circuits to said total and common control means over conductors corresponding to the ticket machine to which the-.total adding .machine is connected,

`means in said total adding machine control means actuated over-the control circuit thereto over the control circuit thereto for operating that adding machine to register thev value of the -yticket printed by the ticket machine to` which that adding machine is connected, and means in saidv common control means actuated `over the control circuit thereto for simultaneously operating the selected one of said individualadding*y machines to registerthe same ticket value. therein. I' 1 11. In a totalizer system, aA total adding ma-" chine comprising a counter, storage relays, and' an accepting relay, a plurality of ticket machines divided into groups each group printing tickets of value different from the other groups,.a conn trol unit in saidtotal adding machine, a control relay in said unit for each value of ticket, a plurality of individual 'adding machines each comprising a counter, accumulatingr relays andV an accepting relay, a control unitv common to said individual adding machines, a control relay in said common control unit for each value of ticket, a collector, means includingl said collector for establishinga circuit connection between saidA .l

l total adding machine accepting relay, a ticket machine and the accepting relay ofone of said individual adding machines, means for operating.

a control unit relay in each unit corresponding' to the value of ticket to be printed by saidv connected ticket machine, and means controlled byV said operated controlv relays. for operating saidVv adding machines to register therein the value of the ticketV printed by said'ticket machine.

12. In combination, a motor magnet, a pair:v of

contacts closed by an operation of said magnet,

a pair of diierential relays, means. for completing a circuit for said motor magnet to operate the same, circuit means for said differential re lays including said motor magnet contactsV overv ticket machine the magnet, said circuit means for said differential relays including means for operating the second relay upon the opening of said motor magnet contacts, means operated by said second relay for reclosing said motor magnet circuit to re-operate the magnet to reclose said contacts, means controlled over said differential relay circuit means by said second relay for restoring said rst relay, control relays, circuit means for said control relays controlled jointly by said first and second differential relays, contacts on said control relays and circuits therefor, comprising, a chain circuit through which said motor magnet circuit extends to permit said control relay means to open the circuit of said magnet after a predetermined number of operations v magnetically operated counter, an accepting relay and storage relays, a total Vcontrol unit therefor, a corresponding plurality of paths leading into said total control unit, means for connecting said total adding machine to a selected one ofv said individual adding machines over a selected one of said paths leading into said individual adding machine and for extending a circuit from ground to said common control unit over a corresponding one of said paths leading into said common control unit and for extending a circuit from ground to said total control unit over a corresponding one of said paths leading into the total control unit, means including the connecting relay in the selected one of said individual adding machines for connecting said common control unt to said adding machine. means in said control unit for operating said adding machine to register the value particular to the selected path, and means in said total control unit for operating said total adding machine to register the same value therein. 14. In a totalizer system, a plurality of individual adding machines, each comprising an electro-magnetically operated counter arranged to register two-unit values, storage relays arranged to store one-unit values and a connecting relay, a plurality of paths leading into each one of said adding machines including a path for oneunit values, a control unit common to said plurality of adding machines, a corresponding plurality of paths leading into said control unit, a total adding machine comprising, an electromagnetically operated counter arranged to register two-unit values and storage relays arranged to store one-unit values, a total control unit for said total adding machine, a plurality of paths leading into said total control unit including a l path for one-unit Values, means for extending a circuit from said total adding machine to a selected one of said individual adding machines over a one-unit value path leading into said individual adding machine, and for extending a circuit to said common control unit over a oneunit`value path leading into said common controlA unit and for extending a circuit to said total control unit over a one-unit value path leading into said total control unit, means including the connecting relay in the selected one of said individual adding machines for establishing circuits from said common control unit to said adding machine, means in said common control unit for operating the storage relays of said adding machine to storel a one-unit value therein and for operating the electro-magneti- `cally operated counter in said adding machine when a previous one-unit value is stored in said storage relays, and means in said total control unit for operating the storage relays in said total adding machine to store a one-unit value therein and for operating the electro-magnetically operated counter of said total adding machine when a previous one-unit value is stored in said storage relays.

15. VIn a totalizer system,a counter, a magnet for operating said counter, a control relay group, a pair of relays included in said group, a circuit for said magnetl extending through a chain of contacts in said control relay group, means for closing said circuit to operate said magnet, contact means closed by said magnet, circuit means controlled by said magnet contact means for operating a first one of said pair of relays, said first relay on operating locking itself and opening said magnet circuit to permit the magnet to restore, means for operating the second one ofr control relays to be operated for opening said magnet circuit.

HAROLD C. ROBINSON. 

